Answer: i really dont know
Explanation:
im sorry im just trying to get questions
B. Using fewer fossil fuels, such as gasoline for a car, reduces the emission of harmful pollutants into the air
Answer:
When calcium concentration increases during depolarization, it shifts the conformation of troponin and tropomyosin, and actin is able to associate with myosin. As calcium is taken up again by the sarcoplasmic reticulum the muscle cell relaxes.
<span>the virus injects the genetic info. this can be RNA or DNA. retroviruses inject RNA. after injection, the host cell transcription/translation machinery is hijacked and starts making virus proteins from the viral genes.</span>
Is the answer three
Because they help the body absorb vitamins a, d, e, and k.